Automated design system for an axial fan

Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 3, pp. 8–9, March, 1992.     

Intracerebral oxytocin is important for the onset of maternal behavior in inexperienced ewes delivered under peridural anesthesia.

Measurement of cerebrospinal concentrations of oxytocin (OT) in intact and peridural-anesthetized ewes showed that central release of OT during parturition is inhibited by this anesthesia. Also, observations of maternal behavior and attraction to amniotic fluid (AF) in inexperienced peridural-anesthetized parturient ewes after intracerebroventricular injections of either OT (2?×?10 μg) or saline showed that OT infusions increased the proportion of maternal females (2/17 vs 10/20; p?=?.01) and attraction to AF. This study confirms that in sheep vaginocervical stimulation activates the oxytocinergic system, which induces the onset of maternal behavior, and that this action is not limited to maternally experienced females. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Analysis of the response of piezopolymer pressure gauges to a plane shock wave

We consider a phenomenological model for piezopolymer pressure gauges designed for registration of plane shock-wave pulses. We analyze the response of the gauges taking into account the physical phenomena observed in polarized polymer films upon action of high-intensity shock waves, the thermodynamic state of the material comprising the sensitive element, and the measurement circuit parameters. We compare the numerical calculations with experimental data for gauges made from polyvinylidene fluoride in the dynamic pressure range up to 16 GPa. We show that at such pressures, the electrical response is mainly determined by the change in the residual polarization of the piezofilm as a result of its compression.Institute of Chemical Physics at Chernogolovka. 142432 Chernogolovka. Translated from Fizika Goreniya i Vzryva, Vol. 30, No. 3, pp. 130–135, May–June 1994.     

Experience in developing ultrahigh capacity compressor stages

Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 2, pp. 4–7, February, 1992.     

Development of equipment for heat treatment of carbon fibres

Conclusions 1. Adequate experience and knowledge has been accumulated in the Khimtekstil'mash NPO to make it possible to develop equipment for the manufacture of CF which conform to the contemporary world level. In recent years work on developing new equipment and improving existing equipment for the manufacture of CF have not received new development because of the lack of financing. One must also note the decrease in tempo of work on technological assurance, which is reflected in the technical level of equipment being developed.2. In connection with the high cost of work on developing new technologies and equipment for the manufacture of CF, these problems require solution at the state and in first-state level, since CF are materials not only for the present but also mainly for the future.Deceased.Khimtekstil'mash NPO (Chernigov). Translated from Khimicheskie Volokna, No. 5, pp. 33–35, September–October, 1993.